cpu_feature_p@Base 2.2.3
dispatch_debug@Base 2.2.3
(optional|arch=i386 amd64)dispatch_x86ish_cpuid@Base 2.5.0
+ (optional|arch=i386 amd64)dispatch_x86ish_rdrand@Base 2.5.99~
(optional|arch=i386 amd64)dispatch_x86ish_xmmregisters_p@Base 2.5.0
## regdump (available with `--enable-asm-debug')